Plans déposés aux archives de l'Incorporated Church Building Society (1818-1982), organisme chargé de la construction et de la restauration des églises anglicanes
A free, publicly searchable Internet database of architectural and historical information and images for 35,000+ structures, mostly in Philadelphia, Bucks, Chester, Delaware and Montgomery Counties, including all those on the Philadelphia Historical Commission list of significant buildings, and the Pennsylvania Historical & Museum Commission’s inventory of historic structures